Posted by **Henry P** on Sunday, May 27, 2012 at 4:35pm.

The area of a circle is given by the expression pi(16x^2 - 40x + 25) .

a) What is the diameter of the circle?

b) What is its circumference?

## Answer This Question

## Related Questions

- math - I'm asked to find the circumference of a circle to the nearest tenth and ...
- math - The number of square units in the area of circle P is equal to the number...
- summer math hw - one circle has a diameter of 10 inches. a second circle has a ...
- math - The circumference of a circle varies directly from its diameter. If the ...
- Circumference and Area of Circles - can someone help me with these:Find the ...
- Math - Jason drew two circles. the diameter of the larger circle is twice the ...
- Math - The circumference of a circle varies directly from its diameter. If the ...
- Math - If the diameter of a circle is 22 cm, what is the circumference of the ...
- 8th grade math - circle A has a raduis that is twice the length og the raduis of...
- math - You can use the formula A = C^2 / 4pi to find the area of a circle given ...

More Related Questions